One last thing: If you are looking for a used EVSE on Craigslist I can suggest that you use these key phrases and search the general FOR SALE section to make sure that you catch all possible categories that someone might have listed their EVSE for sale. Use the quotes. If anybody has another effective search string, please post it.

"Nissan Leaf""29690""3NA0A"

I paid $120 on Craigslist for the used Nissan Leaf EVSE pictured in the post two above this one.

Thanks for the time and effort you've put into this - I'm sure it will save people money, time and trouble by allowing DIY'ers to upgrade their own EVSE's

If you decide to do the upgrades for people who don't think they could do their own, let us know what the charge would be. I know I have one OEM Panasonic unit here which has never been upgraded - It's probably only been used a few times

My 'main' EVSE is a home built 'Open EVSE' which I constructed in a weatherproof plastic camera case. I use it only in L2 mode at 12 amps and my original upgraded OEM unit I use only in L1 mode at 12 amps - I originally thought it would be nice to carry in the car to be able to recharge from any outlet 'in the wild' I might run into, but in 5 years it's never made even a single trip away from home

Thanks for the good words. I will ponder offering plug and play power supplies that allow for 240V AC Level 2 charging. I forgot to mention that after the changes are made inside the EVSE case, the unit is still perfectly functional as a Level 1 EVSE. If you put on a 240V plug you would then need a wiring adapter to go from whatever you used on the end of the cord to a 5-15 120V AC receptacle. If you left the 5-15 plug on the end of your EVSE it will still work at 120V as-is. Not sure why you would want to do that but it works nonetheless. And remember, this is not my design. I just copied exactly what EVSEUpgrade did.

Okay, I received the power supply and installed it without too much trouble. The "ready" and charging" lights are working however, I'm only getting 1550 watts to the car when plugged into 240vac (6.3 amps per leg) A definite improvement but it would be nicer at 3600 watts. Did I miss something? I removed the varistor too.

2012 ES, Cool Metalic Silver, no quick charge, no fog lights and no navi but a cold weather package for when it gets 13 below, wait - it never gets that cold here."Silver Shadow"

I did confirm what you are seeing, more or less. The Mitsubishi branded EVSE that I modified charges the I-MiEV at 7.2A, the Volt at 8.0A and our Leaf at 7.6A. The Mitsubishi branded EVSE that EVSE Upgrade modified charges each car at 12.3A as seen on my ammeter and also indicated by the flashing charge light (13 flashes). The Mitsubishi branded EVSE that I modified does not output the flash code indicating charging amperage.

The Nissan branded EVSE that I modified charges all three cars at 10.7A, 2 Amps lower than the Nissan branded EVSE that EVSE Upgrade modified. I think this is only due to a firmware difference.

EVSE Upgrade mentions that their modified units are easily programmable for 6-12 Amps I cannot find the procedure on their website. Does anyone here have that documentation handy? Edit: I found the reprogramming link two posts down.

Jim

Last edited by Jiminy on Mon Feb 27, 2017 2:11 pm, edited 1 time in total.

EVSEUpgrade also either re-programs or replaces the circuit in the brick, as the lights behave differently on their newer units.

To adjust the amperage, insert a paperclip into the proximity and pilot pins on the J1772 handle. The red Error light on the brick will start flashing rapidly. Then, simply click the release button the desired number of amps you'd like to charge. Each button press will flash the green light once (10 flashes = 10 amps), up to a max of either 12 or 13, based on voltage. When you've reached the desired amps, remove the paper clip, and count the flashes. If the amps are set to your liking, click the release button once more, then plug the car in. This resets to default after unplugging.

They also mention a way to override the GFCI for emergency generator charging, but I think you have to contact them to enable it to minimize abuse.

Dropbox maintenance in progress. If any of my links aren't working after November 17, please PM me and let me know which one isn't working.

I just tried reprogramming my EVSE Upgrade-modified Mitsubishi EVSE and it worked perfectly. I was able to switch from 6 Amps up to 13 Amps. I also tried 8 Amps for grins. When I tried doing the same procedure to the Mitsubishi EVSE that I modified it just showed that I was charging when I had the jumper inserted. I couldn't program it. No need to reproduce this test. I will look deeper into it. If anybody has any ideas I'm all ears.

The original EVSE Upgrade I purchased about 4 years ago wasn't adjustable. I sent it in as an L1 only 8 amp unit and they returned it as a 12 amp L1/L2 unit. Not sure exactly what they do to up the amps to 12, but with the original upgrade it was 12 amps only, L1 and L2 with no adjustment possible. Evidently there must be something more they do other than just replacing the transformer and removing the varistor. When I spoke with them they said that 12 amps was chosen because the wire gauge between the brick and the car would not support using 14 amps which would have allowed the iMiEV to recharge at maximum capacity

Does the charging light blink on your EVSE when it is charging? If so, then you should be able to adjust the charging rate as per the pdf guide two posts back. Lemme know if it blinks. I bought mine 3 years ago and it is adjustable.